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JPS56106137A - Measuring apparatus for mean particle volume - Google Patents

Measuring apparatus for mean particle volume

Info

Publication number
JPS56106137A
JPS56106137A JP898880A JP898880A JPS56106137A JP S56106137 A JPS56106137 A JP S56106137A JP 898880 A JP898880 A JP 898880A JP 898880 A JP898880 A JP 898880A JP S56106137 A JPS56106137 A JP S56106137A
Authority
JP
Japan
Prior art keywords
circuit
voltage
threshold
value
decreases
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP898880A
Other languages
Japanese (ja)
Inventor
Takashi Yumita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sysmex Corp
Original Assignee
Sysmex Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sysmex Corp filed Critical Sysmex Corp
Priority to JP898880A priority Critical patent/JPS56106137A/en
Publication of JPS56106137A publication Critical patent/JPS56106137A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/01—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials specially adapted for biological cells, e.g. blood cells
    • G01N2015/012—Red blood cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

PURPOSE:To easily measure volume value of mean red blood corpsucle by monitoring the count values at two points of the discrete levels of blood corpsucle counters. CONSTITUTION:The output of a detector 1 is sent to two threshold circuits 2, 3. The particle signal past the threshold circuit 2 is sent to a frequency-voltage converting circuit 4, from which the voltage corresponding to the number of particles per unit time is generated. The threshold voltage of the threshold circuit 3 is the output voltage of a saw-tooth voltage generating circuit 11, hence, the number of the pulses past the threshold circuit 3 decreases with time, and along with this, the output voltage of the circuit 5 decreases as well and when it decreases to the value of the voltage distributed by a distributor 6, a comparator 7 operates. By the operation of the comparator 7, a stop signal is sent to a counter circuit 8. The count value of the counter circuit 8 indicates the mean particle volume, and this value is displayed and printed in a display-printing device 9.
JP898880A 1980-01-28 1980-01-28 Measuring apparatus for mean particle volume Pending JPS56106137A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP898880A JPS56106137A (en) 1980-01-28 1980-01-28 Measuring apparatus for mean particle volume

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP898880A JPS56106137A (en) 1980-01-28 1980-01-28 Measuring apparatus for mean particle volume

Publications (1)

Publication Number Publication Date
JPS56106137A true JPS56106137A (en) 1981-08-24

Family

ID=11708060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP898880A Pending JPS56106137A (en) 1980-01-28 1980-01-28 Measuring apparatus for mean particle volume

Country Status (1)

Country Link
JP (1) JPS56106137A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5126826A (en) * 1973-10-30 1976-03-05 Hoechst Ag AMINOBENZEN JUDOTAINO SEIHO

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5126826A (en) * 1973-10-30 1976-03-05 Hoechst Ag AMINOBENZEN JUDOTAINO SEIHO

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